The birth of Mark Harmon

Mark Joseph Harmon was born on August 2, 1982 in San Mateo County, California.

His father's last name is Harmon, and his mother's maiden name is George. If Mark is still alive, he's now years old.

His potential siblings include Sarah (born 1974), Brynale (born 1993), Matthew (born 1978) and Bryan (born 1989).